It’s being made by In the Shadow of the Moon director director David Sington and may be released at festivals and cinemas next year, according to people familiar with the plans.

So how will it be different from what we’ve seen to date, such as the BBC’s The Love of Money?

Right now that isn’t clear, though Sington’s documentary production company Dox boasts the strapline “Truth Is Stranger Than Fiction”.

Too right. In The Shadow Of The Moon, a documentary on the moonshots, was a classy production, garnering a bunch of awards, so that portends well.

Johnson says: “I am helping to produce a documentary about the financial crisis, together with Stephen Lambert This is a personal project. It is likely to come out next Spring. We believe it will be a more balanced, serious and thoughtful film than those that have appeared to date.”